Skewed Left

The Billy Beane Famous-Old-DH Gambit

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Kevin Mitchell was 36 years old and coming off 84 games played in three years when he signed with the Oakland A’s in the middle of spring training 1998. A former National League MVP and home run and RBI champion from across the Bay Bridge, Mitchell was clearly on the way down from his 1989-90 mini-peak and mini-resurgence with the 1993 and 1994 Reds, but first-year general manager Billy Beane made the call for Mitchell as part-time DH.

It was Beane’s first platoon as general manager. He would switch off the right-handed-hitting Mitchell with the young(er) lefty hitter Matt Stairs.

It didn’t work at all. Despite getting a majority of his at-bats and more than 80 percent of his starts against left-handed pitching, Mitchell just couldn’t hit anymore. He followed up his .157/.275/.373 in limited action the year before with a .228/.279/.346 in 136 plate appearances with Oakland. He was released in August and never played again.

But in addition to being the reigning platooner-in-chief’s first foray into that world, Mitchell represents another first that keeps on coming up. He was Beane’s first old and declining DH.

Between that spring training signing and the Adam Dunn trade this week, the A’s have turned this into an art form. They aren’t the leaders in quantity of old DH’s during Beane’s tenure—that would be the Yankees, pretty much no matter how you set the minimums of age and plate appearances. But for a low-budget team that would never think to acquire most of these players as free agents in their prime, Oakland has certainly cornered the market on corner men and DH’s of great accomplishment several years prior.

All of these guys were as old or older than Dunn’s current age of 34 when Beane acquired—or re-acquired—them. None hung around for more than one year—or in Frank Thomas’ case, two separate stints, neither longer than one year.

Frank Thomas, age 38/40 (2006/2008) – 448 career home runs when acquired by the A’s for the first time, 516 the second time.

Hideki Matsui, 37 (2011) – 173 MLB home runs and 505 between MLB and the Central League

Just like it was for Mitchell, Oakland was the end of the line for five of those eight players—Thomas, Piazza, Justice, Karros and Garciaparra. It will be for Dunn as well, assuming he stays true to his word to reporters that this is probably all there is. (He would be the youngest retiree ever from the 400-home run club.)

Dunn’s A’s career began with a powerful statement that he’s not quite done. After hitting .201/.321/.410 in the first 3 ½ years of his four-year deal with the White Sox—a .732 OPS that’s a departure from an extremely consistent .902 OPS with his first three teams—Dunn did this to Chris Young in his A’s debut.

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Whether or not the A’s made the acquisition expecting improvement, Dunn should be a nice improvement to a banged up and suddenly offensively limited lineup. Still, Dunn can’t tail off much from his .281 TAv from the 2014 White Sox and still provide much of anything in the way of positive value, given his defensive and baserunning nonexistence and liability, respectively.

Of Beane’s old DH’s, the results are pretty mixed. Counting Thomas twice, four of the nine seasons mentioned above saw the player improve his true average from his previous season or team. Five went the other way, including three who you could legitimately say collapsed, losing 39 or more points of TAv when going to the A’s.

Player

Previous team

Previous TAv

A’s TAv

Frank Thomas (1)

2005 White Sox

.297

.310

Frank Thomas (2)

2008 Blue Jays

.223

.274

Mike Piazza

2006 Padres

.297

.257

Jason Giambi

2008 Yankees

.300

.261

David Justice

2001 Yankees

.263

.278

Eric Karros

2003 Cubs

.254

.194

Nomar Garciaparra

2008 Dodgers

.263

.245

Mike Sweeney

2007 Royals

.252

.266

Hideki Matsui

2010 Angels

.290

.264

The factors should work both ways on this. Obviously, these are all players on the undesirable slope of their aging curve. However, there are some factors that should be helping these players both show improvement and actually improve. One is a potential selection effect—that for the A’s to sign a slugger, he probably has to be coming off a subpar season, at least for him, and there could be some bounceback there.

The other gets to the first point with Mitchell. The A’s will generally be giving less playing time to that DH than his previous team did when the player was a year younger; especially with the A’s lately, that often takes the form of a platoon.

It’s been particularly noticeable with the right-handed hitters, some of whom have seen the percentage of their plate appearances with the platoon advantage see a spike.

Player

Previous team

Previous platoon adv. %

A’s platoon adv. %

Frank Thomas (R) (1)

2005 White Sox

31%

25%

Frank Thomas (R) (2)

2008 Blue Jays

22%

31%

Mike Piazza (R)

2006 Padres

26%

29%

Jason Giambi (L)

2008 Yankees

72%

69%

David Justice (L)

2001 Yankees

72%

75%

Eric Karros (R)

2003 Cubs

35%

61%

Nomar Garciaparra (R)

2008 Dodgers

36%

45%

Mike Sweeney (R)

2007 Royals

31%

43%

Hideki Matsui (L)

2010 Angels

73%

71%

With lefties like Dunn, that hasn’t always been so easy. Dunn was already being platooned by the White Sox, so the percentage isn’t going to go up much from 86 percent of plate appearances with the platoon advantage. But if the A’s can keep that up, he should have a good chance to be productive.

And given that Dunn has a significant career-long platoon split that’s only growing, Billy Beane’s favorite move of acquiring the platoon-able player as well as an old standby of signing the old DH for one last shot might help get the Donkey into the playoffs for the first time.

Thanks to the Baseball-Reference.com Play Index for research assistance.

Billy Beane finally got too smart for his own good. Hitting, not pitching, is the commodity that is in short supply. It seems that the pitching doesn't even have to be any good to hitters out nowadays. The crashing of offenses throughout baseball shows that clearly. Most so called experts said the Orioles didn't have enough pitching. Who cares! If Shane Greene, who couldn't get any body out in the bushes but has made several quality starts for the Yankees, can do the job then Tillman, Chen, Norris, et al., look like Smoltz, Maddox and Glavine to me. Beane has apparently made a very serious blunder in sending Cespedes to Boston. Is it chemistry or simply the presence of his bat in the lineup that is missing but I am not making a new contribution by being Mr. Obvious.